Constant humidity, constant temperature and constant pressure multipurpose freshness keeping storehouse

The utility model relates to a multipurpose preservation store of constant humidity, temperature and pressure, comprising a shell body, a box body, a thermal insulation layer between the shell body and the box body, a box gate, a vacuum pump, a damping machine, a freezing evaporator, a freezing chamber and a cooling unit. The utility model is characterized in that: the freezing evaporator is in the freezing chamber which is connected with the box body by an inlet wind pipe and an outlet wind pipe; the box body is connected with the vacuum pump and the damping machine; the inlet wind pipe is connected onto the freezing chamber; and a fan is arranged on the outlet wind pipe of the box body. The utility model has the advantages that stored food in particular fruits and vegetables can keep fresh and in good quality for a long time.